linux-kernel - [PATCH V4 10/16] perf/x86/intel/uncore: Add Sapphire Rapids server M3UPI support

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Message-Id: <1625087320-194204-11-git-send-email-kan.liang@linux.intel.com>
Date:   Wed, 30 Jun 2021 14:08:34 -0700
From:   kan.liang@...ux.intel.com
To:     peterz@...radead.org, mingo@...hat.com, gregkh@...uxfoundation.org,
        acme@...nel.org, linux-kernel@...r.kernel.org
Cc:     eranian@...gle.com, namhyung@...nel.org, jolsa@...hat.com,
        ak@...ux.intel.com, yao.jin@...ux.intel.com,
        Kan Liang <kan.liang@...ux.intel.com>
Subject: [PATCH V4 10/16] perf/x86/intel/uncore: Add Sapphire Rapids server M3UPI support

From: Kan Liang <kan.liang@...ux.intel.com>

M3 Intel UPI is the interface between the mesh and the Intel UPI link
layer. It is responsible for translating between the mesh protocol
packets and the flits that are used for transmitting data across the
Intel UPI interface.

The layout of the control registers for a M3UPI uncore unit is similar
to a UPI uncore unit.

Reviewed-by: Andi Kleen <ak@...ux.intel.com>
Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
---
 arch/x86/events/intel/uncore_snbep.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index d74f918..6738513 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -5545,6 +5545,11 @@ static struct intel_uncore_type spr_uncore_upi = {
 	.name			= "upi",
 };
 
+static struct intel_uncore_type spr_uncore_m3upi = {
+	SPR_UNCORE_PCI_COMMON_FORMAT(),
+	.name			= "m3upi",
+};
+
 #define UNCORE_SPR_NUM_UNCORE_TYPES		12
 
 static struct intel_uncore_type *spr_uncores[UNCORE_SPR_NUM_UNCORE_TYPES] = {
@@ -5557,7 +5562,7 @@ static struct intel_uncore_type *spr_uncores[UNCORE_SPR_NUM_UNCORE_TYPES] = {
 	&spr_uncore_imc,
 	&spr_uncore_m2m,
 	&spr_uncore_upi,
-	NULL,
+	&spr_uncore_m3upi,
 	NULL,
 	NULL,
 };
-- 
2.7.4